FD Calculator

Calculate fixed deposit maturity amount with different compounding frequencies. See interest earned on your FD investment.

Last updated: June 1, 2026

Maturity Amount
1,41,478
Interest Earned
41,478
Principal
1,00,000

What is FD Calculator?

An FD (Fixed Deposit) calculator computes the maturity value of a lump sum deposited at a fixed interest rate for a specified period. Fixed deposits are India's most popular risk-free savings instrument — banks and NBFCs pay guaranteed interest rates (currently 6-8% for 1-5 year tenures). This tool shows your maturity amount, total interest earned, and effective yield based on compounding frequency (quarterly compounding is standard for Indian banks). It helps you compare FD offers across institutions.

How It Works

Enter the deposit amount, annual interest rate, tenure, and compounding frequency (monthly, quarterly, half-yearly, annually). The tool applies the compound interest formula: Maturity = P × (1 + r/n)^(n×t). Quarterly compounding (the Indian bank standard) means interest is calculated and added to principal every 3 months, so future interest is earned on previously accumulated interest. The tool shows the exact maturity amount, total interest earned, and effective annual yield (which is higher than the stated rate due to compounding).

Common Use Cases

  • Comparing FD offers from different banks to find the highest effective return
  • Calculating the maturity value for planning specific financial goals and timelines
  • Understanding the impact of different compounding frequencies on final returns
  • Planning FD laddering strategy by calculating maturity values at different tenures
  • Comparing pre-tax and post-tax FD returns for tax-bracket-aware investment decisions
  • Calculating interest income for quarterly advance tax payment estimation

Frequently Asked Questions

How is FD interest calculated?

FD interest is calculated using compound interest formula: A = P(1 + r/n)^(nt), where n is the compounding frequency.

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